Lock and rose.



No. 770,266. I PATENTED SEPT. 20, 1904. N. W. GRAN'DALL. LOOK AND ROSE.

APPLICATION FILED MAY 27, 1904.

N0 MODEL.

UNITED STATES Patented September 20, 1904.

PATENT OEErcE.

NATHAN WV. CRANDALL, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL & ERVVIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK AND ROSE.

SPECIFICATION forming part of Letters Patent No. 770,266, dated September 20, 1904,

Application filed May 27, 1904.

To all whom, it may concern.-

Be itknown that I, NATHAN W. CRANDALL, a citizen of the United States, residing at New Britain, Hartford county, and State of Con- 5 necticut, have invented certain new and useful Improvements in Locks and Roses, of which the following is a full, clear, and exact description.

My invention relates to lock and latch fit- I tings, and particularly to a compensating device for a cylinder-lockand rose-plate.

The object of the invention is to provide a simple construction which may be manufactured economically and which will assist in I positioning and protecting a cylinder-lock and compensate for variations in the angle between the lock and the door as well as adjustment by preserving the alinement of the rose and its proper appearance.

The invention includes a casing or roseplate adapted to fit a cylinder-lock and con-' taining a series of springs nicely fitted into the casing for bearing against the flange of the cylinder and holding the parts in position.

The invention will be more clearly seen on an inspection of the accompanying single sheet of drawings.

Figure l is a perspective view of a doorlock with a compensating device embodying 0 the improvements of my invention. Fig. 2 is a plan view and section of the same. Fig. 3 is a vertical section of a casing embodying my invention.

1 indicates the door.

2 is a lock-case of suitable construction adapted to fit into a mortise in the edge of the door.

3 is a face-plate.

4 is a locking-bolt.

5 is the cylinder of a pin-tumbler lock, which is secured to the lock-case 2 by a screwthreaded portion.

6 is a plug of the usual type mounted in the cylinder 5. Proper connections are provided on the interior of the lock-case for opcrating the bolt 4 from the plug 6.

7 is a screw for pressing against the cylin:

der 5 to hold it in its proper position rela- Serial No. 210,036. (No model.)

tively to the case 2 and prevent its working loose.

8 is a lug carried by the case 2 for guiding the screw 7 The lock-case is often set in a door slightly at an angle to the surface thereof, so that the lock-cylinder instead of being perpendicular to the door makes an acute angle thereto. Doors vary also in thickness. My invention is provided for making allowance for these differences and for adjustments of the lock-cylinder.

An annular casing or rose-plate is provided, which consists of an annular ring 9, having an internal diameter slightly greater than the diameter of the cylinder 5, and a converging flange 10, whose internal diameter is slightly greater than the diameter of the long flange 11 of thelock. Inside of the casingis mounted the compensating spring device. This consists of a ring 12, which is held in place therein and which has the spring-arms 13 13 13 for pressing against the rear of the lock-flange 11. The annular case is preferably formed of a single piece of sheet metal spun up to the form desired. The device is preferably formed of a single piece of sheet metal stamped to the form desired and with the spring-arms 13 bent up, as shown. v bear against the flanges of the lock and hold the rose-plate securely against the door no matter at what angle or in what position the lock-cylinder is adjusted. The construction will be seen to be such that the lock may be adjusted in or out to a considerable extent without having the flange 11 extend entirely within or protrude entirely from the annular casing. For this purpose I have made the surface of the flange 11 substantially at right angles tothe surfaceof the door, so that the flange ll fits snuglywithin the flange 10 of the rose-plate throughout all the positions of adjustment.

The advantages of this construction in its simplicity and operativeness, as well as economy of construction, will be apparent to those who are skilled in the art.

What I claim is 1. In a device of the character described,

These arms are adapted to the combination of an annular casing or roseplate having a converging flange, a spring compensating device secured therein and a lock-cylinder having an extending cylindrical flange of considerable width with its surface at right angles to the plane of the base of the compensating member, the compensating device holding the rose-plate in position.

2. In a compensating device for a cylinderlock, the combination of a casing or receptacle formed of a ring and a converging flange integral therewith, and a ring closely fitting within the angles of the casing and having a plurality of long circumferentially-arranged free-ended spring-arms with a lock-cylinder having a flange forming an abutment for said arms.

3. In a construction of the character delong free-ended spring-arms bearing againstthe rear of said lock-flange for the purpose specified.

Signed at New Britain, Connecticut, this 25th day of May, 1904.

NATHAN W. CRANDALL.

Witnesses:

M. S. WIARD, F. E. SUNBUBN. 

